Trigonospila brevifacies
In 3 days ~20% in a week ~40%
Trigonospila brevifacies is a species of true fly in the family Tachinidae native to eastern Australia. This species is also found in New Zealand. Like the vast majority of tachinid flies, T. brevifacies is a parasitoid of other insects, specifically late larval stages of a number of species of Lepidoptera. It is also known as the Australian Leaf-Roller Fly or Leafroller Fly.
Trigonospila brevifacies is native to the eastern states of Australia and has been collected from Tasmania, New South Wales, Victoria, and southern Queensland. T. brevifacies is also present in New Zealand as it was introduced to control a number of agricultural pests.
Like all Trigonospila species, T. brevifacies can be recognised by its distinctive markings. They are primarily black with pearly whitish to golden transverse bars on the thorax and abdomen. Trigonospila brevifacies is frequently confused with T. cingulata in locations where both species co-occur. T. cingulata appears to much more common than T. brevifacies, particularly in Queensland, New South Wales, and the Australian Capital Territory. It is believed T. cingulata is a parasitoid of chrysomelid beetle larvae... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Egmont National Park | 🇳🇿 New Zealand |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Auckland | 🇳🇿 New Zealand |
With luck
About 10% of wildlife watchers report an Australian Leafroller Tachinid sighting in Auckland on a given day, based on 44 verified sightings from GBIF citizen-science data. It is the 159th most-seen of the 689 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
September to July
In those months about 10% of wildlife watchers report an Australian Leafroller Tachinid in Auckland on a given day, against under 5% in August, the lowest month.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Australian Leafroller Tachinid sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Auckland, in our data
Auckland is the only city on Wallace's Line with enough records to rate Australian Leafroller Tachinid sightings: about 10% of wildlife watchers there report one on a given day.
Same order: Diptera
The closest relatives of the Australian Leafroller Tachinid that you can see in Auckland (order Diptera, Flies) are Common Drone Fly (about 20%), Garden Soldier Fly (about 20%) and Austrosciapus proximus (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Australian Leafroller Tachinid is recorded against all the insects logged in Auckland (44 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
